title: Ductal closure using the Amplatzer duct occluder type two: experience in Port Elizabeth hospital complex, South Africa: cardiovascular topic.
abstract: OBJECTIVE
  To report outcomes in percutaneous ductal closure using the Amplatzer duct occluder type two (ADO II).
  
  
  METHODS
  Records of patients admitted for percutaneous closure of patent ductus arteriosus (PDA) were reviewed.
  
  
  RESULTS
  From May 2009 to July 2012, 36 patients were assigned to closure using the ADO II. There were 21 females and 15 males. The median age was 16.5 (2-233) months; median weight, 8 (3.94-39.2) kg; and median height, 75 (55-166) cm. The mean pulmonary artery pressure was 24.4 (± 10.4) mmHg, the pulmonary blood flow:systemic blood flow (Qp:Qs) ratio was 2.25 (± 1.97), and mean pulmonary resistance (Rp) was 1.87 (± 1.28) Wood units. The mean ductal size was 2.74 (± 1.3) mm. In 30 patients the device was delivered through the pulmonary artery. Thirty-three patients achieved complete closure by discharge (day one).
  
  
  CONCLUSIONS
  The ADO II is capable of closing a wide range of ducts in carefully selected patients. Our findings are comparable with other studies regarding ductal closure rates.
authors.forename: Lungile
authors.initials: L
authors.lastname: Pepeta
authors.forename: Adele
authors.initials: A
authors.lastname: Dippenaar
mesh_terms: D000293:Adolescent; D001011:Aorta / Q000503:physiopathology; D001027:Aortography; D006328:Cardiac Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D002648:Child; D002675:Child, Preschool; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D005260:Female; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D008297:Male; D018579:Patient Selection; D011474:Prosthesis Design; D011651:Pulmonary Artery / Q000000981:diagnostic imaging / Q000503:physiopathology; D012189:Retrospective Studies; D055989:Septal Occluder Device; D013019:South Africa; D013997:Time Factors; D016896:Treatment Outcome